Researchers work to make milk greener

The United Kingdom is finding creative ways to simultaneously address renewable energy needs and waste disposal. Combined Heat and Power (CHP) plants are utilizing chicken manure from farms and coffee grounds to create electricity. The initiatives have the added benefit of improving standards for the treatment of poultry, as well as reducing the distribution of harmful toxins from the waste.

An economic shift to renewable energy could take decades, but thanks to rapidly evolving disruptive technologies, dropping prices of solar and wind power sources, and increasing market demand for green business, the new age of renewable energy could encompass the world economy much more quickly.

A new solar array called North Star in the Twin Cities will soon produce enough energy to power more than 20,000 homes. The project allows landowners to evolve beyond a deteriorating farming industry while maintaining native prairie plants under and around the panels for bees and other pollinators. The project is part of the state's 15-year energy plan to reduce carbon emissions by 60 percent and generate a third of its electricity from renewable sources by 2030.

Inspired by the Dutch concept of “Energiesprong,” or “energy jump,” a developer in France retrofitted a group of townhouses for social housing to be more environmentally friendly. They installed polyurethane facades to avoid heat loss and solar panels on the roof. Upgrading the units to be more green cost more than a conventional retrofit, but over time, energy bills were cut in half. These green retrofits are being implemented in towns around the world and could be a model for developers that want to reduce their carbon footprints.

Aptera Motors, a California-based startup, is poised to roll out the first mass-produced solar vehicle this year: for $25,900. The car is a three-wheel, aerodynamic electric vehicle covered in solar cells that can provide energy to drive about 40 miles. The model is not 100 percent efficient with some energy lost in its electrical current conversion and in its drive system, but the creators say it is four times more effect than an average electric vehicle. Still, when the company started taking preorders, they sold out of its first 330 vehicles in 24 hours.

Climeworks is focusing on pulling carbon dioxide directly out of the air to store or reuse in some capacity as a way to lower global greenhouse gas emissions. The Swiss company has 16 plants around Europe, with their biggest one in Switzerland that removes 900 tons of carbon dioxide a year that is then sold to Coca-Cola Co. to put in soft drinks or to local industrial greenhouses for plant growth. Scaling the operations to capture more carbon is costly, but the startup recently raised $76 million from investors.

Terrapin Beer Co. is powering their brewery with solar power, approximately 30 percent of the business’ total energy. The brewery partnered with Cherry Street Energy, a third-party solar ownership company, which allows them to rent the solar panels for little upfront cost. However, this arrangement doesn’t allow the brewery to store solar power for future use. These efforts allow the business to rely more on renewable energy to reduce their carbon footprint.

Biochar is a form of charcoal that is proving to be quite useful in terms of renewable energy and combatting the climate crisis. From trapping carbon and methane emissions to playing a role in heating homes and feeding cows, some estimates are already showing that biochar has the potential to "offset 1bn tonnes of carbon a year."

Alberta, Canada is a place that historically has had a close relationship with oil and gas. But as renewable energy surges into the market, these industries become more and more precarious. This article talks to a range of young men—a key demographic in these industries—about why they made the decision to leave oil and gas for solar energy and what helped them make that transition. Many said, among other things, that their motivations lay in wanting to leave a better world for their children to grow up in.

After California passed new regulations mandating that the dairy industry needs to mitigate the amount of methane emissions produced from cows, some farms like Airoso Dairy are adopting new technologies to do the job. The farm works with energy companies to use a digester that converts the cow’s manure into biofuel. While the initial investment in the technology can be expensive, this conversion of fuel has also added a new revenue stream for the farm.